Artificial intelligence refrigerator

Abstract

An artificial intelligence refrigerator includes a communication unit, a camera configured to capture an image of a tray including a plurality of grooves for storing food, and a processor configured to control the communication unit and the camera. The processor extracts a marker hidden by the food of a plurality of markers respectively attached to the plurality of grooves from the captured image of the tray, acquires a position identifier of a groove corresponding to the hidden marker and a reception time indicating that the food is received in the groove, transmits the acquired position identifier and the reception time to a server through the communication unit, receives determined color information from the server based on the reception time, and controls a light emitting element provided in the groove to output a color to be displayed on the groove included in the received color information.

What is claimed is: 
     
       1. An artificial intelligence refrigerator comprising:
 a communication unit; 
 a camera configured to capture an image of a tray including a plurality of grooves for storing food; and 
 a processor configured to control the communication unit and the camera, 
 wherein the processor is further configured to: 
 determine whether a hidden marker is present in a plurality of markers respectively attached to the plurality of grooves from the captured image of the tray, 
 based on determining that the hidden marker is present, acquire a position identifier of a groove corresponding to the hidden marker and a reception time indicating that the food is received in the groove, 
 transmit the acquired position identifier and the reception time to a server through the communication unit, 
 receive determined color information from the server based on the reception time, and 
 control a light emitting device provided in the groove to output a color to be displayed on the groove included in the received color information. 
 
     
     
       2. The artificial intelligence refrigerator according to  claim 1 , further comprising a memory configured to store a plurality of position identifiers including the position identifier of the groove corresponding to the hidden marker,
 wherein the processor is further configured to compare an acquired position identifier of a non-hidden marker from the image of the tray with the plurality of position identifiers and acquire the position identifier of the groove corresponding to the hidden marker based on a result of the comparison. 
 
     
     
       3. The artificial intelligence refrigerator according to  claim 2 , wherein the processor acquires a time when the image of the tray is captured as the reception time, when the marker hidden by the food is extracted. 
     
     
       4. The artificial intelligence refrigerator according to  claim 1 ,
 wherein the light emitting device is a organic light emitting diode (LED), and 
 wherein the processor is further configured to transmit, to the tray, a color display command for enabling the LED to display the color. 
 
     
     
       5. The artificial intelligence refrigerator according to  claim 1 , wherein the marker is any one of a QR code or a barcode. 
     
     
       6. An artificial intelligence refrigerator comprising:
 a memory; 
 a tray including a plurality of grooves for storing food; 
 a camera configured to capture an image of the tray; and 
 a processor configured to 
 determine whether a hidden marker is present in a plurality of markers respectively attached to the plurality of grooves from the captured image of the tray, 
 based on determining that the hidden marker is present, acquire a position identifier of a groove corresponding to the hidden marker and a reception time indicating that the food is received in the groove, and 
 calculate freshness of the food stored in the groove using the acquired position identifier and a reception time and controls a light emitting device provided in the groove to output a color corresponding to the calculated freshness. 
 
     
     
       7. The artificial intelligence refrigerator according to  claim 6 , wherein the processor is further configured to calculate the freshness using a retention period which is a difference between a current time and the reception time. 
     
     
       8. The artificial intelligence refrigerator according to  claim 7 , wherein the processor is further configured to:
 receive an expiration date of the food from a mobile terminal, and 
 calculate the freshness using the received expiration date and the retention period. 
 
     
     
       9. The artificial intelligence refrigerator according to  claim 8 ,
 wherein the memory stores a table indicating correspondence between the freshness and a color, and 
 wherein the processor extracts a color matching the calculated freshness using the table and controls the light emitting element provided in the groove to output the extracted color. 
 
     
     
       10. The artificial intelligence refrigerator according to  claim 6 , wherein the memory stores a plurality of position identifiers including the position identifier of the groove corresponding to the hidden marker,
 wherein the processor is further configured to compare an acquired position identifier of a non-hidden marker from the image of the tray with the plurality of position identifiers and acquire the position identifier of the groove corresponding to the hidden marker based on a result of the comparison. 
 
     
     
       11. The artificial intelligence refrigerator according to  claim 6 , wherein the processor acquires a time when the image of the tray is captured, as the reception time, when the marker hidden by the food is extracted.